Commit | Line | Data |
996be9ee |
1 | package DBIx::Class::Schema::Loader::DBI::mysql; |
2 | |
3 | use strict; |
4 | use warnings; |
5 | use base 'DBIx::Class::Schema::Loader::DBI'; |
942bd5e0 |
6 | use mro 'c3'; |
c4a69b87 |
7 | use Carp::Clan qw/^DBIx::Class/; |
c0767caf |
8 | use List::Util 'first'; |
c4a69b87 |
9 | use List::MoreUtils 'any'; |
ea998e8e |
10 | use Try::Tiny; |
c0767caf |
11 | use namespace::clean; |
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12 | |
4295c4b4 |
13 | our $VERSION = '0.07010'; |
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14 | |
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15 | =head1 NAME |
16 | |
17 | DBIx::Class::Schema::Loader::DBI::mysql - DBIx::Class::Schema::Loader::DBI mysql Implementation. |
18 | |
996be9ee |
19 | =head1 DESCRIPTION |
20 | |
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21 | See L<DBIx::Class::Schema::Loader> and L<DBIx::Class::Schema::Loader::Base>. |
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22 | |
23 | =cut |
24 | |
bc1cb85e |
25 | sub _setup { |
26 | my $self = shift; |
27 | |
6ebd0f33 |
28 | $self->schema->storage->sql_maker->quote_char("`"); |
29 | $self->schema->storage->sql_maker->name_sep("."); |
30 | |
bc1cb85e |
31 | $self->next::method(@_); |
32 | |
33 | if (not defined $self->preserve_case) { |
34 | $self->preserve_case(0); |
35 | } |
c4a69b87 |
36 | |
37 | if ($self->db_schema && $self->db_schema->[0] eq '%') { |
38 | my @schemas = try { |
39 | map $_->[0], @{ $self->dbh->selectall_arrayref('SHOW DATABASES') }; |
40 | } |
41 | catch { |
42 | croak "no SHOW DATABASES privileges: $_"; |
43 | }; |
44 | |
45 | @schemas = grep { |
46 | my $schema = $_; |
47 | not any { $schema eq $_ } $self->_system_schemas |
48 | } @schemas; |
49 | |
50 | $self->db_schema(\@schemas); |
51 | } |
52 | } |
53 | |
54 | sub _system_schemas { |
55 | my $self = shift; |
56 | |
57 | return ($self->next::method(@_), 'mysql'); |
bc1cb85e |
58 | } |
59 | |
518472fa |
60 | sub _tables_list { |
bfb43060 |
61 | my ($self, $opts) = @_; |
518472fa |
62 | |
bfb43060 |
63 | return $self->next::method($opts, undef, undef); |
518472fa |
64 | } |
65 | |
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66 | sub _table_fk_info { |
67 | my ($self, $table) = @_; |
68 | |
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69 | my $table_def_ref = eval { $self->dbh->selectrow_arrayref("SHOW CREATE TABLE ".$table->sql_name) }; |
3de915bc |
70 | my $table_def = $table_def_ref->[1]; |
71 | |
72 | return [] if not $table_def; |
309e2aa1 |
73 | |
c4a69b87 |
74 | my $qt = qr/["`]/; |
75 | my $nqt = qr/[^"`]/; |
309e2aa1 |
76 | |
77 | my (@reldata) = ($table_def =~ |
c4a69b87 |
78 | /CONSTRAINT ${qt}${nqt}+${qt} FOREIGN KEY \($qt(.*)$qt\) REFERENCES (?:$qt($nqt+)$qt\.)?$qt($nqt+)$qt \($qt(.+)$qt\)/ig |
309e2aa1 |
79 | ); |
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80 | |
81 | my @rels; |
82 | while (scalar @reldata > 0) { |
c4a69b87 |
83 | my ($cols, $f_schema, $f_table, $f_cols) = splice @reldata, 0, 4; |
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84 | |
c4a69b87 |
85 | my @cols = map { s/$qt//g; $self->_lc($_) } |
be72dba7 |
86 | split(/$qt?\s*$qt?,$qt?\s*$qt?/, $cols); |
5223f24a |
87 | |
c4a69b87 |
88 | my @f_cols = map { s/$qt//g; $self->_lc($_) } |
be72dba7 |
89 | split(/$qt?\s*$qt?,$qt?\s*$qt?/, $f_cols); |
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90 | |
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91 | my $remote_table = first { |
92 | lc($_->name) eq lc($f_table) |
93 | && ((not $f_schema) || lc($_->schema) eq lc($f_schema)) |
94 | } $self->_tables_list; |
c0767caf |
95 | |
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96 | push(@rels, { |
97 | local_columns => \@cols, |
98 | remote_columns => \@f_cols, |
c0767caf |
99 | remote_table => $remote_table, |
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100 | }); |
101 | } |
102 | |
103 | return \@rels; |
104 | } |
105 | |
106 | # primary and unique info comes from the same sql statement, |
107 | # so cache it here for both routines to use |
108 | sub _mysql_table_get_keys { |
109 | my ($self, $table) = @_; |
110 | |
5223f24a |
111 | if(!exists($self->{_cache}->{_mysql_keys}->{$table})) { |
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112 | my %keydata; |
c4a69b87 |
113 | my $sth = $self->dbh->prepare('SHOW INDEX FROM '.$table->sql_name); |
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114 | $sth->execute; |
115 | while(my $row = $sth->fetchrow_hashref) { |
116 | next if $row->{Non_unique}; |
117 | push(@{$keydata{$row->{Key_name}}}, |
bc1cb85e |
118 | [ $row->{Seq_in_index}, $self->_lc($row->{Column_name}) ] |
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119 | ); |
120 | } |
121 | foreach my $keyname (keys %keydata) { |
122 | my @ordered_cols = map { $_->[1] } sort { $a->[0] <=> $b->[0] } |
123 | @{$keydata{$keyname}}; |
124 | $keydata{$keyname} = \@ordered_cols; |
125 | } |
5223f24a |
126 | $self->{_cache}->{_mysql_keys}->{$table} = \%keydata; |
996be9ee |
127 | } |
128 | |
5223f24a |
129 | return $self->{_cache}->{_mysql_keys}->{$table}; |
996be9ee |
130 | } |
131 | |
132 | sub _table_pk_info { |
133 | my ( $self, $table ) = @_; |
134 | |
135 | return $self->_mysql_table_get_keys($table)->{PRIMARY}; |
136 | } |
137 | |
138 | sub _table_uniq_info { |
139 | my ( $self, $table ) = @_; |
140 | |
141 | my @uniqs; |
142 | my $keydata = $self->_mysql_table_get_keys($table); |
8ac8926d |
143 | foreach my $keyname (keys %$keydata) { |
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144 | next if $keyname eq 'PRIMARY'; |
145 | push(@uniqs, [ $keyname => $keydata->{$keyname} ]); |
146 | } |
147 | |
148 | return \@uniqs; |
149 | } |
150 | |
26334ec1 |
151 | sub _columns_info_for { |
152 | my $self = shift; |
153 | my ($table) = @_; |
154 | |
155 | my $result = $self->next::method(@_); |
156 | |
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157 | while (my ($col, $info) = each %$result) { |
26334ec1 |
158 | if ($info->{data_type} eq 'int') { |
159 | $info->{data_type} = 'integer'; |
160 | } |
161 | elsif ($info->{data_type} eq 'double') { |
162 | $info->{data_type} = 'double precision'; |
163 | } |
698c11d8 |
164 | my $data_type = $info->{data_type}; |
165 | |
166 | delete $info->{size} if $data_type !~ /^(?: (?:var)?(?:char(?:acter)?|binary) | bit | year)\z/ix; |
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167 | |
f80b0ea7 |
168 | # information_schema is available in 5.0+ |
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169 | my ($precision, $scale, $column_type, $default) = eval { $self->dbh->selectrow_array(<<'EOF', {}, $table, $col) }; |
33aa3462 |
170 | SELECT numeric_precision, numeric_scale, column_type, column_default |
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171 | FROM information_schema.columns |
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172 | WHERE table_name = ? AND column_name = ? |
26334ec1 |
173 | EOF |
698c11d8 |
174 | my $has_information_schema = not $@; |
33aa3462 |
175 | |
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176 | $column_type = '' if not defined $column_type; |
177 | |
698c11d8 |
178 | if ($data_type eq 'bit' && (not exists $info->{size})) { |
26334ec1 |
179 | $info->{size} = $precision if defined $precision; |
180 | } |
698c11d8 |
181 | elsif ($data_type =~ /^(?:float|double precision|decimal)\z/i) { |
26334ec1 |
182 | if (defined $precision && defined $scale) { |
183 | if ($precision == 10 && $scale == 0) { |
184 | delete $info->{size}; |
185 | } |
186 | else { |
187 | $info->{size} = [$precision,$scale]; |
188 | } |
189 | } |
190 | } |
698c11d8 |
191 | elsif ($data_type eq 'year') { |
26334ec1 |
192 | if ($column_type =~ /\(2\)/) { |
193 | $info->{size} = 2; |
194 | } |
195 | elsif ($column_type =~ /\(4\)/ || $info->{size} == 4) { |
196 | delete $info->{size}; |
197 | } |
198 | } |
698c11d8 |
199 | elsif ($data_type =~ /^(?:date(?:time)?|timestamp)\z/) { |
57a9fc92 |
200 | if (not (defined $self->datetime_undef_if_invalid && $self->datetime_undef_if_invalid == 0)) { |
201 | $info->{datetime_undef_if_invalid} = 1; |
202 | } |
58333f16 |
203 | } |
698c11d8 |
204 | elsif ($data_type =~ /^(?:enum|set)\z/ && $has_information_schema |
205 | && $column_type =~ /^(?:enum|set)\(/) { |
206 | |
207 | delete $info->{extra}{list}; |
208 | |
e00d61ac |
209 | while ($column_type =~ /'((?:[^']* (?:''|\\')* [^']*)* [^\\'])',?/xg) { |
210 | my $el = $1; |
211 | $el =~ s/''/'/g; |
212 | push @{ $info->{extra}{list} }, $el; |
698c11d8 |
213 | } |
214 | } |
33aa3462 |
215 | |
216 | # Sometimes apparently there's a bug where default_value gets set to '' |
217 | # for things that don't actually have or support that default (like ints.) |
218 | if (exists $info->{default_value} && $info->{default_value} eq '') { |
219 | if ($has_information_schema) { |
220 | if (not defined $default) { |
221 | delete $info->{default_value}; |
222 | } |
223 | } |
224 | else { # just check if it's a char/text type, otherwise remove |
698c11d8 |
225 | delete $info->{default_value} unless $data_type =~ /char|text/i; |
33aa3462 |
226 | } |
227 | } |
26334ec1 |
228 | } |
229 | |
230 | return $result; |
231 | } |
232 | |
a8df0345 |
233 | sub _extra_column_info { |
f430297e |
234 | no warnings 'uninitialized'; |
45be2ce7 |
235 | my ($self, $table, $col, $info, $dbi_info) = @_; |
a8df0345 |
236 | my %extra_info; |
78b7ccaa |
237 | |
45be2ce7 |
238 | if ($dbi_info->{mysql_is_auto_increment}) { |
a8df0345 |
239 | $extra_info{is_auto_increment} = 1 |
240 | } |
45be2ce7 |
241 | if ($dbi_info->{mysql_type_name} =~ /\bunsigned\b/i) { |
46bef65f |
242 | $extra_info{extra}{unsigned} = 1; |
243 | } |
45be2ce7 |
244 | if ($dbi_info->{mysql_values}) { |
245 | $extra_info{extra}{list} = $dbi_info->{mysql_values}; |
8fdd52a2 |
246 | } |
3372cb43 |
247 | if ( lc($dbi_info->{COLUMN_DEF}) eq 'current_timestamp' |
248 | && lc($dbi_info->{mysql_type_name}) eq 'timestamp') { |
3facc532 |
249 | |
6e566cc4 |
250 | my $current_timestamp = 'current_timestamp'; |
251 | $extra_info{default_value} = \$current_timestamp; |
f430297e |
252 | } |
8fdd52a2 |
253 | |
a8df0345 |
254 | return \%extra_info; |
8fdd52a2 |
255 | } |
256 | |
db9c411a |
257 | sub _dbh_column_info { |
258 | my $self = shift; |
259 | |
260 | local $SIG{__WARN__} = sub { warn @_ |
261 | unless $_[0] =~ /^column_info: unrecognized column type/ }; |
262 | |
263 | $self->next::method(@_); |
264 | } |
265 | |
5c06aa08 |
266 | sub _table_comment { |
267 | my ( $self, $table ) = @_; |
268 | my $comment = $self->next::method($table); |
269 | if (not $comment) { |
ea998e8e |
270 | ($comment) = try { $self->schema->storage->dbh->selectrow_array( |
5c06aa08 |
271 | qq{SELECT table_comment |
272 | FROM information_schema.tables |
273 | WHERE table_schema = schema() |
274 | AND table_name = ? |
275 | }, undef, $table); |
ea998e8e |
276 | }; |
5c06aa08 |
277 | # InnoDB likes to auto-append crap. |
278 | if (not $comment) { |
279 | # Do nothing. |
280 | } |
281 | elsif ($comment =~ /^InnoDB free:/) { |
282 | $comment = undef; |
283 | } |
284 | else { |
285 | $comment =~ s/; InnoDB.*//; |
286 | } |
287 | } |
ea998e8e |
288 | return $comment; |
5c06aa08 |
289 | } |
290 | |
291 | sub _column_comment { |
292 | my ( $self, $table, $column_number, $column_name ) = @_; |
293 | my $comment = $self->next::method($table, $column_number, $column_name); |
294 | if (not $comment) { |
ea998e8e |
295 | ($comment) = try { $self->schema->storage->dbh->selectrow_array( |
5c06aa08 |
296 | qq{SELECT column_comment |
297 | FROM information_schema.columns |
298 | WHERE table_schema = schema() |
299 | AND table_name = ? |
300 | AND column_name = ? |
301 | }, undef, $table, $column_name); |
ea998e8e |
302 | }; |
5c06aa08 |
303 | } |
304 | return $comment; |
305 | } |
306 | |
996be9ee |
307 | =head1 SEE ALSO |
308 | |
309 | L<DBIx::Class::Schema::Loader>, L<DBIx::Class::Schema::Loader::Base>, |
310 | L<DBIx::Class::Schema::Loader::DBI> |
311 | |
be80bba7 |
312 | =head1 AUTHOR |
313 | |
9cc8e7e1 |
314 | See L<DBIx::Class::Schema::Loader/AUTHOR> and L<DBIx::Class::Schema::Loader/CONTRIBUTORS>. |
be80bba7 |
315 | |
316 | =head1 LICENSE |
317 | |
318 | This library is free software; you can redistribute it and/or modify it under |
319 | the same terms as Perl itself. |
320 | |
996be9ee |
321 | =cut |
322 | |
323 | 1; |
26334ec1 |
324 | # vim:et sw=4 sts=4 tw=0: |